P700 vitrifes to a very pleasant silky surface and is translucent on thin pieces. P700 burns to a distinctly blue-white tone at cone 10 reduction firing (compared to the off-whites of the others).
Fired warping is always an issue, but can be reduced by avoiding shapes that lack structural strength (i.e. straight sided cylinders, goblets with flared bases, overhung bowls). 
For slip decoration, be careful to match drying and fired shrinkage of the slip with the body since low temperatures generate little glass to adhere the slip

P700 – Porcelain

  • Drying Shrinkage:  5.0-5.5% | Fired Shrinkage:  Cone 10R:  8.5-9.5%